package src.com.doit.Demo04;
//静态常量定义 public static final  数据类型 大写的名字 = 值;
public class Test {
    public static void main(String[] args) {
        Order order = new Order();

        order.setState(Order.WEI_FU_KUAN);
        System.out.println(order.getState());

        order.setState(Order.WEI_XIA_DAN);
        System.out.println(order.getState());
    }
}
//public static final int PI=3.14